STUDIES ON BORANE COMPOUNDS ⅩⅩⅧ.SYNTHESIS AND CHARACTERIZATION OF DIPYRIDINE COMPLEXES OF RARE EARTH METAL(Ⅲ) B20H18

Chinese Journal of Applied Chemistry ›› 1989, Vol. 0 ›› Issue (1): 50-52.

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STUDIES ON BORANE COMPOUNDS ⅩⅩⅧ.SYNTHESIS AND CHARACTERIZATION OF DIPYRIDINE COMPLEXES OF RARE EARTH METAL(Ⅲ) B₂₀H₁₈

Zhang Guomin, Zhang Li, Zhu Hong

Department of Chemistry, Wuhan University

Received:1988-03-01 Revised:1988-07-18 Published:1989-02-10 Online:1989-02-10

Abstract

Abstract: The dipyridine (dipy) complexes of rare earth(Ⅲ) B₂₀H₁₈ were prepared throughfollowing reactions: 3H₂B₂₀H₁₈+Ln₂O₃→Ln₂(B₂₀H₁₈)₃ +3H₂O Ln₂(B_{20 H₁₈}₃ + 8dipy [Ln(dipy)₄]₂(B₂₀H₁₈)₃ where Ln = Yb, Tm, Ho, Gd and Sm.All the compounds obtained are solid and soluble in polar solvents, but not in non-polar solvents. They are stable to air and moisture.The complexes were identified by elemental analysis, electroconductivity, IR spectraand TG-DTA measurements. Dipy is found to be Londed to the rare earth via N atom.The molar conductance data indicate that these complexes are ionic and behave as 2:3 electrolytes in DMF.

Key words: Organoboron compound, Complexes of rare tarth, Synthesis

Zhang Guomin, Zhang Li, Zhu Hong. STUDIES ON BORANE COMPOUNDS ⅩⅩⅧ.SYNTHESIS AND CHARACTERIZATION OF DIPYRIDINE COMPLEXES OF RARE EARTH METAL(Ⅲ) B₂₀H₁₈[J]. Chinese Journal of Applied Chemistry, 1989, 0(1): 50-52.

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STUDIES ON BORANE COMPOUNDS ⅩⅩⅧ.SYNTHESIS AND CHARACTERIZATION OF DIPYRIDINE COMPLEXES OF RARE EARTH METAL(Ⅲ) B₂₀H₁₈

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